Such a weird argument as if so-called comfort zone is guaranteed to bring trophies and it is something to hold against Totti, Maldini, Pele, Del Piero etc. who all played for a single team.
I am gonna explain it with a very simple example that you can understand using your favorite player.
What would happen if Ronaldo stayed in his comfort zone in United after SAF? oh yeah, the comfort zone would be no longer comfortable, after SAF right? Where would he be trophies wise if he stayed in his comfort zone at United all these years
?
Messi played with tons of mediocre managers, players under different systems and still managed to win major awards.. He stayed after Guardiola and continued to play in both good & bad times at Barca, didn't jump ship when the comfort zone became increasingly uncomfortable..